Human vs Barramundi perch LastZ results

Human (Homo sapiens, GRCh38) and Barramundi perch (Lates calcarifer, ASB_HGAPassembly_v1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 97. Human was used as the reference species. After running LastZ, the raw LastZ alignment blocks were chained according to their location in both genomes. During the final netting process, the best sub-chain was chosen in each region on the reference species.

Configuration parameters

ParameterValue
Gap open penalty (O)400
Gap extend penalty (E)30
HSP threshold (K)3000
Threshold for gapped extension (L)3000
Threshold for alignments between gapped alignment blocks (H)2200
Masking count (M)
Seed and Transition value (T)1
Scoring matrix (Q)
Default:
     A    C    G    T
    91 -114  -31 -123
  -114  100 -125  -31
   -31 -125  100 -114
  -123  -31 -114   91

Chunking parameters

ParameterHumanBarramundi perch
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 260,881 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Human

Uncovered: 3,062,211,473 out of 3,096,649,726
Covered: 34,438,253 out of 3,096,649,726

Uncovered: 14,794,362 out of 35,619,351
Matches: 14,358,661 out of 35,619,351
Mismatches: 6,114,639 out of 35,619,351
Insertions: 351,689 out of 35,619,351
Identity over aligned base-pairs: 68.9%

Barramundi perch

Uncovered: 633,568,991 out of 668,464,831
Covered: 34,895,840 out of 668,464,831

Uncovered: 16,605,868 out of 41,392,853
Matches: 17,105,000 out of 41,392,853
Mismatches: 7,195,482 out of 41,392,853
Insertions: 486,503 out of 41,392,853
Identity over aligned base-pairs: 69.0%

Block size distribution

Size range All 260,881 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,841
8.3 kb
10 bp - 100 bp
53,288
4.0 Mb
14,931
1.1 Mb
100 bp - 1 kb
203,889
40.4 Mb
79,549
24.2 Mb
1 kb - 10 kb
1,856
2.9 Mb
10,401
20.7 Mb
10 kb - 100 kb
7
97.5 kb
92
1.3 Mb
100 kb - 1 Mb
2
218.8 kb